Officials have ruled out earthquakes or mining as the source of a 2.75-magnitude event in 2020 near China's nuclear test site ...

A Trump administration official said that a remote seismic station in Kazakhstan measured an “explosion” in western China on ...

A US official says a seismic station in Kazakhstan collected evidence of an alleged China nuclear test at Lop Nur in June ...

Seismic data points to a detonation in northwest China, U.S. says.

U.S. releases seismic data alleging a secret 2020 Chinese nuclear test at Lop Nur as global arms control agreements continue ...

The U.S. government revealed new intelligence on Tuesday suggesting China may have conducted an ...

WASHINGTON — The United States is ready to carry out low-yield nuclear tests to match alleged secret explosions by China and ...

At a event in Washington D.C., A U.S. official said a remote earthquake in 2020 was caused by a Chinese nuclear test.

The United States on Friday accused China of carrying out a secret nuclear test in 2020 as the Trump administration calls for ...

It remains to be seen whether the three big nuclear powers are headed into a new arms race, or whether President Trump is trying to spur negotiations on a new accord now that a last Cold War treaty ...

MOSCOW, Feb 18 (Reuters) - The Kremlin said on Wednesday that neither China nor Russia havecarried out secret nuclear tests, noting Beijing had denied U.S. accusations that it had done so. The United ...

The allegations were leveled by U.S. officials late last week. Arms control experts worry that norms against nuclear testing ...